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EP 3 676 440 A1

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(43) Date of publication: 08.07.2020 Bulletin 2020/28 (21) Application number: 19756752.2 (22) Date of filing: 25.02.2019

(51) International Patent Classification (IPC):  D06F 58/28(2006.01) D06F 58/26(2006.01) D06F 58/20(2006.01) D06F 58/24(2006.01) (86) International application number: PCT/KR2019/002283 (87) International publication number: WO 2019/164368 (29.08.2019 Gazette 2019/35)

(84) Designated Contracting States: AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR Designated Extension States: BA ME Designated Validation States: KH MA MD TN (30) Priority: 23.02.2018 KR 20180022248 27.12.2018 KR 20180170122 (71) Applicant: Samsung Electronics Co., Ltd. Gyeonggi-do 16677 (KR)

(72) Inventors: SEOK, Hyejoon Suwon-si Gyeonggi-do 16677 (KR) YOO, Sangoh Suwon-si Gyeonggi-do 16677 (KR) JUNG, Minjoon Suwon-si Gyeonggi-do 16677 (KR) KIM, Dohaeng Suwon-si Gyeonggi-do 16677 (KR) LEE, Hyungwoo Suwon-si Gyeonggi-do 16677 (KR) CHUNG, Seungeun Suwon-si Gyeonggi-do 16677 (KR) CHOI, Youngmin Suwon-si Gyeonggi-do 16677 (KR) (74) Representative: Gulde & Partner  Patent- und Rechtsanwaltskanzlei mbB Wallstraße 58/59 10179 Berlin 10179 Berlin (DE)